Managing Serviceguard Nineteenth Edition, Reprinted June 2011

introduction, 20
Serviceguard at a glance, 20
Serviceguard behavior after monitored resource failure,
26
Serviceguard behavior in LAN failure, 26
Serviceguard behavior in software failure, 26
Serviceguard commands
to configure a package, 289
Serviceguard Manager, 23
overview, 23
SG-CFS-DG-id# multi-node package, 122
SG-CFS-MP-id# multi-node package, 122
SG-CFS-pkg system multi-node package, 121
SGCONF, 150
shared disks
planning, 92
single cluster lock
choosing, 45
single point of failure
avoiding, 20
single-node operation, 213, 306
size of cluster
preparing for changes, 148
SMN package, 48
SNA applications, 334
software failure
Serviceguard behavior, 26
software planning
CVM and VxVM, 98
LVM, 96
solving problems, 319
SPU information
planning, 90
standby LAN interfaces
defined, 27
standby network interface, 27
starting a package, 271
startup of cluster
manual, 43
when all nodes are down, 265
state
of cluster and package, 249
stationary IP addresses, 64
STATIONARY_IP
parameter in cluster manager configuration, 111
status
cmviewcl, 248
multi-node packages, 249
of cluster and package, 249
package IP address, 316
system log file, 316
stopping a cluster, 266
storage management, 76
SUBNET
in sample package control script, 292
parameter in package configuration, 240
subnet
hardware planning, 90, 95
parameter in package configuration, 240
SUBNET (for IP Monitor)
defined, 117
successor_halt_timeout parameter, 225
supported disks in Serviceguard, 31
switching
ARP messages after switching, 70
local interface switching, 66
remote system switching, 69
switching IP addresses, 50, 51, 70
system log file
troubleshooting, 316
system message
changing for clusters, 213
system multi-node package, 48
used with CVM, 209
T
tasks in Serviceguard configuration, 25
testing
cluster manager, 308
network manager, 309
package manager, 308
testing cluster operation, 308
time protocol (NTP)
for clusters, 162
timeout
node, 85
TOC
and MEMBER_TIMEOUT, 85
and package availability, 86
and safety timer, 115
and the safety timer, 39
defined, 39
when a node fails, 85
toolkits
for databases, 326
traffic type
LAN hardware planning, 91
troubleshooting
approaches, 316
monitoring hardware, 309
replacing disks, 310
reviewing control scripts, 318
reviewing package IP addresses, 316
reviewing system log file, 316
using cmquerycl and cmcheckconf, 318
troubleshooting your cluster, 308
typical cluster after failover
figure, 22
typical cluster configuration
figure, 20
U
uname(2), 333
UPS
in power planning, 93
power supply for OPS on HP-UX, 35
use of the cluster lock, 45, 46
USER_HOST, 120
384 Index